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app.py
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import re
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import streamlit as st
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from transformers import AutoModel, AutoTokenizer
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import io
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from PIL import Image
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@st.cache_resource
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def load_model():
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tokenizer = AutoTokenizer.from_pretrained('srimanth-d/GOT_CPU', trust_remote_code=True)
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model = AutoModel.from_pretrained("srimanth-d/GOT_CPU", trust_remote_code=True, low_cpu_mem_usage=True, use_safetensors=True, pad_token_id=151643)
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model.eval()
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return model, tokenizer
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def handle_error(error_message):
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#logging.error(error_message)
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st.error(f"An error occurred: {error_message}")
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def extract_text(image_bytes, ocr_type):
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try:
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model, tokenizer = load_model()
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image = Image.open(io.BytesIO(image_bytes))
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image.save("temp_image.png", format="PNG")
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res = model.chat(tokenizer, "temp_image.png", ocr_type=ocr_type)
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return res
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except Exception as e:
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handle_error(f"Error during OCR extraction: {str(e)}")
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return None
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def search_keyword(extracted_text, keyword):
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keyword = re.escape(keyword)
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regex_pattern = rf'\b({keyword})\b'
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occurrences = len(re.findall(regex_pattern, extracted_text, flags=re.IGNORECASE))
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highlighted_text = re.sub(regex_pattern, r"<span style='color:red'><b>\1</b></span>", extracted_text, flags=re.IGNORECASE)
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return highlighted_text, occurrences
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@st.cache_data
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def cache_image_ocr(image_bytes, ocr_type):
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return extract_text(image_bytes, ocr_type)
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def app():
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st.set_page_config(page_title="OCR Tool", layout="wide", page_icon=":chart_with_upwards_trend:")
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st.header("Optical Character Recognition for English and Hindi Texts")
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st.write("Upload an image below for OCR:")
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if 'extracted_text' not in st.session_state:
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st.session_state.extracted_text = None
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col1, col2 = st.columns([1, 1])
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with col1:
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st.subheader("Upload and OCR Extraction")
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uploaded_file = st.file_uploader("Choose an image...", type=["jpg", "png", "jpeg"], accept_multiple_files=False)
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# Add OCR type selection dropdown
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ocr_type = st.selectbox("Select OCR Type:", ["ocr", "format"])
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if uploaded_file is not None:
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st.image(uploaded_file, caption='Uploaded Image', use_column_width=True)
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image_bytes = uploaded_file.read()
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if st.session_state.extracted_text is None:
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with st.spinner("Extracting the text..."):
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extracted_text = cache_image_ocr(image_bytes, ocr_type)
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if extracted_text:
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st.success("Text extraction completed!", icon="🎉")
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st.session_state.extracted_text = extracted_text
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st.write("Extracted Text:")
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st.write(extracted_text)
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else:
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st.error("Failed to extract text. Please try with a different image.")
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else:
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st.write("Extracted Text:")
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st.write(st.session_state.extracted_text)
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else:
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st.session_state.extracted_text = None
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st.info("Please upload an image file to proceed.")
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with col2:
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st.subheader("Keyword Search")
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if st.session_state.extracted_text:
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keyword = st.text_input("Enter keyword to search")
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if keyword:
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with st.spinner(f"Searching for '{keyword}'..."):
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highlighted_text, occurrences = search_keyword(st.session_state.extracted_text, keyword)
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if occurrences > 0:
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st.success(f"Found {occurrences} occurrences of the keyword '{keyword}'!")
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st.markdown(highlighted_text, unsafe_allow_html=True)
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else:
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st.warning(f"No occurrences of the keyword '{keyword}' were found.")
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else:
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st.info("Please upload an image and extract text first.")
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def main():
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try:
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app()
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except Exception as main_error:
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handle_error(f"Unexpected error in the main function: {str(main_error)}")
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if __name__ == "__main__":
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main()
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